Car-coupling.



No. 889,033. A PATENTED MAY 26, 1908.

P. NBDDO.

GAR COUPLING.

APPLICATION FILED SEPT.19, 1906.

ii' Emmi" All anuenloz ffiazzp Neddo Grier-mu,

PHILIP NEDDO, OF BARRE, VERMONT.

CAR-COUPLING.

Specification of Letters Patent.

Patented May 26, 1908.

Application filed September 19, 1906. Serial No. 335,317.

T 0 all whom it may concern:

Be it known that I, PHILIP NEDDO, a citizen of the United States,residing at Barre, in the county of Washington and State of Vermont,have invented new and useful Improvements in Car-Couplers, of which thefollowing is a specification.

This invention relates to car couplers of the type embodying a draw headcarrying a pivoted coupling knuckle adapted for movement to and fromengaging or coupling position, and has for its objects to produce acomparatively simple, inexpensive device of this character in which theknuckle will be firmly and securely locked in coupling position, onewherein the knuckle may be conveniently released when circumstancesrequire, and one in which the knuckle will, when released, springautomatically to uncoupling position.

WVith these and other objects in view, the invention comprises the novelfeatures of construction and combination of parts more fully hereinafterdescribed.

In the accompanying drawings: Figure 1 is a horizontal section takenlongitudinally through a draw head, showing the same equipped with acoupling mechanism embodying the invention. Fig. 2 is a vertical,longitudinalsection taken on the line 2-2 of Fig. 1. Fig. 3 is a detailperspective view of the locking member and pin.

Referring to the drawings, -1 designates a draw bar having a head 2hollowed to present an internal chamber 3 and provided at one side witha forwardly projecting guide finger 4 and at its other side with a pairof vertically spaced forwardly extending bearing ears 5, there beingarranged in the chamber 3 a locking member 6 in the form of an L-shapedbell crank lever pivoted at its elbow on a vertical pintle 7 andpresenting a transversely extending contact portion or finger 8 and aforwardly extending engaging portion or finger disposed parallel withthe longitudinal axis of the bar and provided in its outer edge at apoint adjacent its for ward end with a vertical opening or recess 9adapted to receive a vertically movable coupling member or pin 10 inturn entered through suitable openings in the head and designed formovement to release the looking member 6. Pivoted between the ears 5 ona vertical pintle 11 is a coupling knuckle 12 having a rearwardlyextending portion or arm. 13 adapted to enter the chamber 3 and forengagement by the lockingmember 6 to hold the knuckle in couplingposition.

The pin 10, which is suspended at theforward end of an operating lever14, is connected with the locking member 6 by means of a flexibleconnection or chain 15 engaged at one end with the outer edge of the forward portion of the locking member, the chain being passed between itsends loosely through a guide opening 16 formed in the side wall of thedraw head 2.

In practice, when the knuckle 12 is in active coupling position, as seenin Fig. 1, the forwardly extending portion of the locking member willbear against the end of arm 13 for holding the knuckle against movement,the locking member being in turn fixed by means of the coupling pin 10.When, however, the pin is raised through the medium of the lever 14 forreleasing the locking member 6 the knuckle 12 will be free to swing touncoupling position, it being mentioned in this connection that theupward movement of the pin, to prevent its entire withdrawal from thedraw-head, will be limited by the chain 15, which performs theadditional function of moving the locking member 6 to non-engagingposition and further that the member 6 in its movement by the chaininitiates the uncoupling movement of the knuckle. When the knuckle 12 isthrown inward to coupling position, the inner end of arm 13 will contactwith the portion or finger 8 of the locking member, thereby swinging thelatter automatically to locking position to be secured by the pin 10 inthe manner explained. It will be observed.that in the operation of thedevice the knuckle will swing freely to coupling or uncoupling positionand will, in its movements, automatically seat the locking member 6, andfurther that the knuckle will be firmly and securely locked in couplingposition through the medium of the locking member and coupling pin,which latter automatically seats in engagement with the locking memberwhen in locking'position.

Having thus described my invention, what I claim is:

1. In a car coupler, a draw head having a chamber, a coupling knucklepivoted in the head and having an arm adapted to swing into and out ofthe chamber, a locking member permanently pivoted in the chamber toengage the arm to hold the knuckle in coupling position, a coupling pinextending through the head to engage the locking member, an operatinglever flexibly connected with the coupling pin, and flexible elementsconnected with the lever and with the to locking member and the pin andof such length as to prevent the pin from being withdrawn from the head.

2. In a car coupler, a draw head having a chamber provided with alateral opening, a coupling knuckle permanently pivoted on the head andprovided with an arm movable in and out of the chamber, a locking memberpivoted in the head to be actuated by the arm and to hold the arm inlocked position, a pin extending through the head and engaging thelocking member, a chain connected with the looking member and extendingthrough the opening of the draw head, and an operating lever connectedwith the coupling pin and chain.

In testimony whereof, I aflix my signature in presence of two witnesses.

PHILIP NEDDO. Witnesses:

WM. H. EAGER, ALBERT A. SARGENT.

